TT electronics Semelab designs, packages, tests and supplies discrete semiconductors, power modules, RF mosfets and sensor products to the high reliability, aerospace, medical and communications markets. Acquired in August 2008 by TT electronics, Semelab has more than 33 years of development, design and manufacturing expertise, and holds numerous accredited qualifications, enabling them to meet both standard and custom component needs. Semelab products are available through IRC in North America.